Paleocene
5 dictionary results for: Paleocene
Dictionary.com Unabridged (v 1.1) - Cite This Source - Share This
Pa·le·o·cene 
[pey-lee-uh-seen or, especially Brit., pal-ee-] Pronunciation Key Geology
[pey-lee-uh-seen or, especially Brit., pal-ee-] Pronunciation Key Geology –adjective
–noun
| 1. | noting or pertaining to an epoch of the Tertiary Period, from 65 to 55 million years ago, and characterized by a proliferation of mammals. |
| 2. | the Paleocene Epoch or Series. |
Dictionary.com Unabridged (v 1.1)
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2006.
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2006.
American Heritage Dictionary - Cite This Source - Share This
| Pa·le·o·cene
(pā'lē-ə-sēn') Pronunciation Key
adj. Of or belonging to the geologic time, rock series, or sedimentary deposits of the first epoch of the Tertiary Period, marked by the appearance of placental mammals and continental collisions leading to the formation of the Rocky Mountains and the Himalayas. See Table at geologic time. n. The Paleocene Epoch or its system of deposits. |
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The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2006 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2006 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Online Etymology Dictionary - Cite This Source - Share This
Paleocene
Paleocene
geological epoch preceding the Eocene, 1877, from Fr. paléocène (Schimpter, 1874), coined from paleo- + Gk. kainos "new." It is, thus, the "old new" age.
Online Etymology Dictionary, © 2001 Douglas Harper
WordNet - Cite This Source - Share This
| paleocene | |
noun | |
| from 63 million to 58 million years ago; appearance of birds and earliest mammals |
WordNet® 3.0, © 2006 by Princeton University.
The American Heritage Science Dictionary - Cite This Source - Share This
| Paleocene
(pā'lē-ə-sēn') Pronunciation Key
The earliest epoch of the Tertiary Period, from about 65 to 58 million years ago. During this time, the Rocky Mountains formed and sea levels dropped, exposing dry land in North America, Australia, and Africa. Many new types of small mammals evolved and filled the niches left empty after the extinctions that ended the Cretaceous Period. Soft-bodied squid replaced the ammonites as the dominant form of mollusk. See Chart at geologic time. |
The American Heritage® Science Dictionary
Copyright © 2002 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Copyright © 2002 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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